Several Methods Of Cooling A Transformer In Different Industries

By Author: Trutech Products
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The transformers are used widely throughout various industries for the conversion of energy at a certain voltage level to the energy at another voltage level. During such conversions and processes, different types of loss occur in the form of heat that also reduces the output power of the device in comparison to the input voltage. The loss varies as the size and capacity of the transformer varies. To withstand this situation, most industries use different methods to dissipate the heat developed during the process and control the losses. These methods are known as the cooling of the transformer which is utterly important if you want to stop the occurrence of loss.

The transformer has in-built oil tank which helps in the process of cooling of both core and windings that is carried through the space between both. There are different ways of cooling a transformer. The coolants are used in the device to dissipate the heat are oil and the air. The heat is either dissolute in the surrounding air or in the oil surrounding the core and windings.

Methods Of Cooling The Transformers Using Air And Oil:-

Air Cooling: ...
... The heat generated across the core and winding of the device is dissipated from the outer surface of the core and windings to the surrounding air. This method can be classified as the natural air cooling and blast air cooling. In the first method, ambient air is used as the cooling medium where natural circulation of the air dissipates the heat. Another method involves, the circulation of continuous blast of cool air using the external fan without causing any mechanical damage to the device.

Oil And Air Cooling: In this method the heat is substantially transferred to the oil surrounding the core and windings. It is conducted through the walls of the device's tank and finally transferred to the enclosing air by the means of convection and radiation. The benefit of using the method is; it provides better transmission than the first method and high coefficient of conduction results in the natural exchange of the oil.

Oil And Water Cooling: As the name of the method suggests, the process typically involves the usage of both oil and the water as the coolant. Along with the oil cooling, the water is circulated through the copper tubes which enhance the overall process. The method is classified as Oil Natural Water Forced and Oil Forced Water Forced. The second method is always preferred over the first one because it is much safer alternative for the oil cooling.

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